Results 71 to 80 of about 15,556 (297)

Low-cost photoplethysmograph solutions using the Raspberry Pi [PDF]

, 2013
Photoplethysmography is a prevalent, non-invasive heart monitoring method. In this paper an implementation of photoplethysmography on the Raspberry Pi is presented.
Gingl, Zoltan, Nagy, Tamas
core   +2 more sources

Preoperative “R wave amplitude variation” on electrocardiogram predicts severe hypovolemia

Annals of Cardiac Anaesthesia, 2019
Preoperative fasting is essential to prevent aspiration and associated complications. However, quite often patients end up fasting for 12 h or more due to changes in the operating room schedules, delays, and postponements.
Sohan Lal Solanki, Pooja P Kumar, Reshma P Ambulkar   +2 more
doaj   +1 more source

The use of pulse oximeter in hemodynamic assessment [PDF]

, 2014
Objective: Identify and analyze the scientific literature on pulse oximeter with plethysmograph for assessing hemodynamic perfusion. Method: this is an integrative literature review, conducted in January and February 2012 on the Virtual Health Library ...
Abreu, Renata Flávia, Max, Priscilla, Pereira, Luciana Mendonça   +2 more
core   +5 more sources

Prediction equations for plethysmographic lung volumes

Respiratory Medicine, 1998
Due to the lack of information of reference values for plethysmographic lung volumes, standardized measurements were carried out on a selected sample of 482 healthy non-smoking volunteers (300 men and 182 women), aged 20-70 years, living in the Barcelona area (Spain). Prediction equations using age, height and body surface area (BSA) as covariates were
Josep Roca, Joaquín Sanchis, J.M. Antóo, Felip Burgos, J Sunyer, Pere Casan, J. Castellsagué, Jack L. Clausen, Joan Albert Barberà, Robert Rodriguez-Roisin   +9 more
openaire   +3 more sources

Diagnostic Modalities in Sleep Disordered Breathing: Current and Emerging Technology and Its Potential to Transform Diagnostics

Respirology, Volume 30, Issue 4, Page 286-302, April 2025.
ABSTRACT Underpinned by rigorous clinical trial data, the use of existing home sleep apnoea testing is now commonly employed for sleep disordered breathing diagnostics in most clinical sleep centres globally. This has been a welcome addition for the field given the considerable burden of disease, cost, and access limitations with in‐laboratory ...
Lucía Pinilla, Ching Li Chai‐Coetzer, Danny J. Eckert   +2 more
wiley   +1 more source

Ventilatory chemosensory drive is blunted in the mdx mouse model of Duchenne Muscular Dystrophy (DMD). [PDF]

PLoS ONE, 2013
Duchenne Muscular Dystrophy (DMD) is caused by mutations in the DMD gene resulting in an absence of dystrophin in neurons and muscle. Respiratory failure is the most common cause of mortality and previous studies have largely concentrated on ...
Matias Mosqueira, Santhosh M Baby, Sukhamay Lahiri, Tejvir S Khurana   +3 more
doaj   +1 more source

Acute exogenous oestradiol augments endothelial and smooth muscle vasodilatory responsiveness in premenopausal but not postmenopausal females

The Journal of Physiology, Volume 603, Issue 8, Page 2301-2311, 15 April 2025.
Abstract figure legend Brachial intraarterial infusion of exogenous 17β‐oestradiol augmented endothelial and smooth muscle microvascular vasodilatation in premenopausal but not postmenopausal, females. Abstract Menopause is associated with vascular dysfunction. During the menopausal transition, endogenous oestradiol concentrations diminish.
Gabrielle A. Dillon, Ronée E. Harvey, Jacqueline K. Limberg, Wayne T. Nicholson, Michael J. Joyner, Sarah E. Baker, Virginia M. Miller, Sushant M. Ranadive   +7 more
wiley   +1 more source

A Calibration Device to Compare Body Plethysmographs Among Pediatric Lung Function Laboratories

Frontiers in Physiology, 2018
Multi-center studies in specific airway resistance have shown significant inter laboratory variability. Comparison of plethysmographic equipment using a lung model easily transportable from one site to another should be of help to international normative
Bruno Demoulin, Iulia Ioan, Iulia Ioan, Claude Duvivier, Claude Bonabel, Cyril Schweitzer, Cyril Schweitzer, Cyril Schweitzer, François Marchal, François Marchal, Silvia Demoulin-Alexikova, Silvia Demoulin-Alexikova   +11 more
doaj   +1 more source

A Leptin-regulated Circuit Controls Glucose Mobilization During Noxious Stimuli [PDF]

, 2017
Adipocytes secrete the hormone leptin to signal the sufficiency of energy stores. Reductions in circulating leptin concentrations reflect a negative energy balance, which augments sympathetic nervous system (SNS) activation in response to metabolically ...
Allison, Margaret B., Arble, Deanna M., Feldman, Eva, Flak, Jonathan N., Goforth, Paulette B., Hayes, John, Joosten, Maja, Lanigan, Thomas, Morgan, Donald A., Myers, Martin G., Jr., Olson, David P., Pan, Warren, Patterson, Christa, Rahmouni, Kamal, Sackner, Jamie, Seeley, Randy J.   +15 more
core   +1 more source

Characteristics of Cerebral Autoregulation After Mechanical Thrombectomy and Its Relationship With Prognosis

CNS Neuroscience &Therapeutics, Volume 31, Issue 3, March 2025.
MT has a positive effect on dynamic cerebral autoregulation (dCA) at the acute phase of stroke. For MT patients, dCA is a reliable indicator for predicting the prognosis of patients and may be an intervention target to improve outcomes. ABSTRACT Aims To investigate the characteristics of dynamic cerebral autoregulation (dCA) in patients after ...
Yang Qu, Menglu Cong, Jia Liu, Pan‐Deng Zhang, Zi‐Duo Shen, Han Zhang, Yingying Sun, Hongjing Zhu, Chao Li, Peng Zhang, Junlei Chang, Kejia Zhang, Jiaxin Ren, Hang Jin, Xin Sun, Yi Yang, Zhen‐Ni Guo   +16 more
wiley   +1 more source